Is Hercule coming back?

Hercule follows Hercule Poirot's first cases in London before he becomes the world's most famous sleuth. The series is an intimate study of Hercule the man and an epic portrait of Britain between the wars. The series takes a magnifying glass to three of Christie's most celebrated stories, while also charting Hercule's burgeoning friendship with Captain Arthur Hastings, his early encounters with Scotland Yard's James Japp, and introducing him to one particular nemesis...